Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage decreases increases remains unchanged reverses polarity decreases increases remains unchanged reverses polarity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A keeper is used to Provide a closed path for flux Restore lost flux Change the direction of magnetic lines Amplify flux Provide a closed path for flux Restore lost flux Change the direction of magnetic lines Amplify flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon Motion of the magnet Resistance of the coil Pole strength of the magnet Number of turns of the coil Motion of the magnet Resistance of the coil Pole strength of the magnet Number of turns of the coil ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one which is a bad conductor which is a strong magnet which is a good conductor through which the magnetic lines of force can pass very easily which is a bad conductor which is a strong magnet which is a good conductor through which the magnetic lines of force can pass very easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Out of the following statements, concerning an electric field, which statement is not true? The electric intensity is a vector quantity The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point An electric field is defined as a point in space at which an electric charge would experience a force Unit field intensity in the exertion of a force of one newton on a charge of one coulomb The electric intensity is a vector quantity The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point An electric field is defined as a point in space at which an electric charge would experience a force Unit field intensity in the exertion of a force of one newton on a charge of one coulomb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Tungsten Aluminium Copper Nickel Tungsten Aluminium Copper Nickel ANSWER DOWNLOAD EXAMIANS APP
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